Efficient Solvent-free Oxidation of Benzylic and Aromatic Allylic Alcohols and Biaryl Acyloins by Manganese Dioxide and Barium Manganate

Abstract

Active manganese dioxide and commercially available barium manganate are used for the efficient oxidation of benzylic and aromatic allylic alcohols and biaryl acyloins under solvent-free conditions.

References

1. A. J. Fatiadi, Synthesis, 1976, 65 (Part 1) and 133 (Part 2).
2. (a) H. Firouzabada and E. Ghaderi, Tetrahedron Lett., 1978, 839; (b) H. Fizouzabadi and Z. Mostafavipour, Bull. Chem. Soc. Jpn., 1983, 56, 914; (c) A. J. Fatiadi, Synthesis, 1986, 85; (d) K. S. Kim, S. Chung, I. H. Cho and C. S. Hahn, Tetrahedron Lett., 1989, 30, 2559; (e) M. Hudlicky, Oxidations in Organic Chemistry, American Chemical Society, Washington, DC, 1990; (f) G. Procter, S. V. Ley and G. H. Castle, Encylopedia of Reagents for Organic Synthesis, ed. L. A. Paquette, John Wiley & Sons, New York, 1995, vol. 1, pp. 240–242.
3. F. Toda, Acc. Chem. Res., 1995, 28, 480.
4. (a) M. Hirano, S. Yakabe, H. Chikamoro, J. H. Clark and T. Morimoto, J. Chem. Res (S), 1998, 308; (b) T. Acyama, N. Sonoda, M. Yamauchi, K. Torizama, M. Anzai, A. Ando and T. Shiori, Synlett, 1998, 35.
5. Aldrich Catalogue Handbook of Fine Chemicals, Sigma–Aldrich, Gillingham, 1992–93.